mcleod



K. MCLEOD.

SEC'TIONAL CONCRETE FORM. APPLICATION FILED Au.22. IQIII.

Patented Nov. 18, 1919.

3 SHEETS-SHEET I.

Inventor Away.

.IIII

Patented Nov. 18, 1919.

3 SHEETS-SHEET 2.

K. MCLEOD.

SECTIONAL CONCRETE FORNI.

APPLiCATlON FILED AUG.22.1918.

K. IVICLEOD.

SECTIONAL CONCRETE FORM.

APPLICATION FILED AUG.22.191u.

l322,034 Patented Nov. 18, M19.

3 SHEETS-SHEET :il

PATENT ourion.

KENNETH Merton, or SAN mancasse; unnironmn.

sncfriouan Geneanet-roam..

isaaosa.

To all whom t may concern.'

Be it` known that I, KENNETH MGLEOD, a citizen of the United States, residing in the city and county of `San Francisco, State of California, have invented a new and useful Improvement in Sectional Concrete` Forms,f of which thefollowing is a specification.

Myinvention relates to improvements in sectional concrete forms wherein a movable framework operates in conjunction with a series of sections shaped to form the hull of a ship or the like when moved into connection with each other; and the objects. of my invention' are First, to provide an improved construction for sectional concrete forms;

Second, to provide an improved construction of the character described wherein the sections are permanent and may be easily and readily moved into and out of connection with each other and to be reused on subsequent similar concrete structures.

The invention consists in the particular details of construction as set forth in the accompanying drawings and described in the specifications and claims forming a part hereof, and in whichi y i Figure l is a brokenpplan view ofrone half of a formed `structure and one half of my improved form; l

Fig. 2 is a broken side elevationfof Fig. 1;

Fig. 3 is a transverse sectional view on an enlarged scale taken on line 34-3 of Fig. 1 l in the direction indicated;

Fig. l `is a horizontal sectional view, o n an Venlarged scale,taken Online Ll-fl ofFig. 3 of the drawings in the direction indicated;

Fig. 5 is a `modiied Jform of the construction disclosed in Fig. 4;'

Fig'. 6 is a transverse sectional `view taken on line 6-6 of Fig. 1 in the direction indicated and on an enlarged scale;

'oFighand` i u Fig. 8 is abi'oken detail viewdisclosing the manner in which adjacent edges" of the `form sect-ionare rigidly secured together.

specification of Letters raient.

r Application led August 22, 1918.

Patented Nov. is, 1919". Serial No. 251,703.

framework 3 consisting of the usual net; work of `vertically and` horizontally dis-1 posed beains of any suitable type, as disclosed in Figs. 3, 6` and 7 oi' thedrawings. y Wheels l are rotatably mounted upon each framework 3 supporting the sections 2 whereby said framework 3 and sections 2 thereonumay be easily and readily moved into connection with each other and retired from the completed concretestructure .wit-h# out destroyingsaid framework or the sections thereon. i The frames 3 and the sections 2 thereon are raised `and supported in' an operative position by means of suitable wedges 6 which are placed under the lower 'surfaces or edges of the said frames 3 whereby the sections 2 may be dropped or released from a completed concrete structure in a manner hereinafter more` fully set forth:

The edges 7 of each section 2 at the junction with another section are beveled as dis closed in` detail in Fig. 8 of the drawings and said `sections 2 are provided near their edges,` in one form of the invention,` with battens 8 which may be tightly and rigidly drawn together to insure a rigid and substantially leak proof jointby means of suitable bolts9 or the like. Or as disclosed in detail in Fig. 8 of the drawings the battens 8 may be secured near certain edges only of said sections 2, portions of the frames 3 being secured near the remaining edges of said sections.` In this case the hatten-s 8 are drawn toward the frame members* 3 by means of the bolts 91as previously described.

'lflieinterior portion of the form may be built' up in any manner whereby a suitable channel" or mold is formed between the sec tions2 and said interior portion of the struc ture or form. y

. I prefer to use the form of construction disclosed in Figs. 4 and 5 of the drawings wherein a series of interior U-shap`e`d sections 12 are provided withlateral extensions 14m11.011s leg or flange thereof, saidlateral extension 14 operating in` conjunction with thelegs of adjacent sections to form ribs 15 in the' completed concrete structure.

The U-shaped sections" 12 arel mounted upon frames 16 which are detachably' mount edupon stringere 17. l

The sections 12 mayE befprovided with .telescoping` joints 18 disclosed in Fig; y 5 of the drawings by means of" which tlreldel rio ` sign o f'the structuremay be altered to increase the distance between the ribs l or the entire length ofthe shi-p to be poured.

The form or mold as represented Aby the space between the sections 2 andr12 is Ymaintained by means of concrete separators 19 which, also serve as a support for the interiorV structure or sections 12. The separators 19 are first laid upon the interior bottom of the sections 2 to support sections 12 and as the pouring of the concrete progresses new separators 19 are added to maintain the channel Y between the outer and inner sections 2 and 12 Vze - .i After the concrete structure -respectively,'as disclosed in Figs. 3, 6 and 7 of the drawings. These separators-19 may be held in position by wiring to the forms or in any other suitable manner.

In setting up the form the sections 2, by means of the wheeled. framesl 3, are moved into juxtaposition with the site upon Awhich the ship is to be poured and by means of the wedges 6 said frames 3 and the sections 2 thereon are raised to. what I term an operative position.

g The separators 19 are then laid upon the interior. bottom of the Vsections 2 and the sections 12 areA then built up and connected upon said separators .19.

has set the sections 2 may be easily and readily -removed by lreleasing and removing'the outer or farthermost wedges 6, that is, the wedges farthe'st from the ship, leaving only a single line of inner' wedges 6 supporting the vframes 3 and sections 2-thereon. This vwill cause the upper portion or endof the sec- .tions 2vand`their supporting frames 3 to rev'ters Patent is l Vtire ormove outwardly and away from the finished concrete structure so that any overhanging portions cast-upon the exterior sur- .face Vof the-said finished structure will be liberated from the mold or section by such outward movement.

.The remaining or inward line of wedges is thenremoved which will lower the entire Yframe 3 to theground .and resting upon the wheels 4 which support it. vThe frames can Vthenjbe'moved away from the structure, as disclosed in dotted lines in Fig. 3 of the 2. A form for concrete ships and the like comprising a series of sections having beveled junctional edges; a suitable framework supporting the sections; wheels mounted Y upon the framework adapted to support the same andthe sections rigidly so that they may be moved into conjunction with each other to form a mold and moved away from a completed structure formed within the mold without destroying said sections; and means for detachablysecuring the beveled edges of the adjacent sections rigidly together.

3. A form for concrete ships and the like comprising a series of sections having beveled junctional edges; a suitable framework supporting the sections; wheels mounted upon the framework and adapted to support the same and the sections rigidly so that they may be moved into conjunction with each other to form a mold and moved away from a completed structure formed within the mold without destroying said sections; means for detachably securing the beveled edges of adjacent sections rigidly together; and means for raising the wheels, frame work and sections and retaining them in position to form a mold. t

4. A form for concrete ships and the like comprising a series of sections having beveled junctional edges; a suitable framework supporting the sections; wheels mounted upon the framework and adapted to support the same and the sections rigidly so that they may be moved into conjunction with each other to form a mold and moved away from a completed structure formed within the mold without destroying said sections; means for detachably securing the beveled edges of adjacent sections rigidly together; anc suitable wedges arranged to raise the sections and wheels thereon from the ground to rigidly support the frames and sections in operative position.

5. A form for concrete ships and the like comprising a series of detachable sections having beveled junctional edges, said several sections being shaped to form the hull of a ship or the like when moved into conjunction with and connected to each other; a l

suitable frame work for each section; wheels .mounted upon eachframework for rigidly supporting said sections while they are moved into and out of position; and means for detachably securing the adjacent beveled edgesy of adjacent sections rigidly together.

6. A form for concrete ships and the like comprising a series of detachable sections having beveled junctional edges, said several sections being shaped to form the hull of a ship or'the like when moved into conjunction with and connected to each other; a suitable frame work for each section; wheels mounted upon each framework for rigidly supporting said sections while they are moved into and out of position; means for detachably securing the adjacent beveled edges of adjacent sections rigidly together; and means for raising the frames and sections thereon into operative position whereby saidv frames and sections may be retired from a completed structure when said raising* means are removed.

7. A form for concrete ships and the like comprising a series of detachable sections having beveled junctional edges, said several sections being shaped to form the hull of a ship or the like when moved into conjunction with and connected to each other; a suitable frame work for each section; wheels mounted upon each framework for rigidly supporting said sections while they are moved into and out of position; means for detachably securing the adjacent beveled edges of adjacent sections rigidly together; and suitable wedges arranged to raise the frames and sections thereon into an operative position whereby said frames and sections may be easily removed from a completed concrete structure Without damage by releasing and removing the wedges.

8. A form for concrete ships and the like comprising a series of sections having beveled edges, said sections being severally shaped to form the hull of a ship when moved into conjunction with each other and connected together; suitable battens secured near the edges of each section; means for moving the battens toward each other whereby the beveled edges may be closely and rigidly held together; a suitable frame work for supporting each section; Wheels mounted upon each section whereby the frames and sections thereon may be easily moved into conjunction with each other and retired from a completed concrete structure; and suitable wedges arranged to raise the frames and sections thereon into operative position whereby said frames and sections may be easily removed by removing' said wedges.

In witness whereof I hereunto set my signature.

KENNETH MCLEOD. 

